sniffing tool

Sorry but i’m not mikrotik user, i have one question i found in internet that miktorik have sniffing tool function, to send traffic for annalaze wireshark to network.. but i cannot understand this function have all routers? for exaple RB931-2nD or MIKROTIK RB2011UIAS-2HND-IN ? thank you and please explane me this function ..

Yes,

You can read all about it here: https://wiki.mikrotik.com/wiki/Manual:Tools/Packet_Sniffer